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ST7MC2 Datasheet(PDF) 181 Page - STMicroelectronics |
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ST7MC2 Datasheet(HTML) 181 Page - STMicroelectronics |
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181 / 308 page  ST7MC1/ST7MC2 181/308 MOTOR CONTROLLER (Cont’d) Figure 102. Overview of MTIM Timer in Speed Measurement Mode S C § = Register updated on R event To interrupt generator To interrupt generator S Compare Clock MSbits clr C C 16-bit Up Counter MTIM§ MTIML§ 16-bit Capture Register MZREG MZPRV LSbits C MDREG (16MHz) ST[3:0] Bits 4 1 / 2Ratio MZREG < 55h? MTIM Register = 100h? +1 -1 Tratio RPI RMI MPRSR Register IS[1:0] bits Encoder Clock TES[1:0] bits MPAR* and MPHST* IS[1:0] TES[1:0] Registers: MSCR* MPHST* MPAR* ECM C Tacho Capture MTIM Read access RTC interrupt (Capture Event) (Speed Error Event) Compare FFh (Fixed) 16 MHz - 500 Hz RPI To interrupt generator RMI To interrupt generator (Ratio Increment Event) (Ratio Decrement Event) Bits: Registers Notes: * = Register set-up described in Speed Sensor Mode Section (4MHz) fMTC fPERIPH 1 |
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